Safety note: Can cause allergic reactions in sensitive individuals.
Common Ragweed is a tall, branching plant with small, inconspicuous green flowers. It is notorious for producing large amounts of pollen, which is a major cause of hay fever.
Habitat
Thrives in disturbed soils, fields, and roadsides.
Diet
Its pollen is spread by the wind rather than pollinators.
How common
Common
Best time to see a Common Ragweed
The best time to see a Common Ragweed is June–August, when about 61% of U.S. sightings happen, based on 37,831 research-grade iNaturalist observations.
J
F
M
A
M
J
J
A
S
O
N
D
Not certain it is a Common Ragweed? What plant is this? walks through what to check first and the lookalikes that catch people out.
Recent Common Ragweed sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
Spotted a Common Ragweed?
Point Huck at any plant, bird, or animal and know for sure - plus a live map of where it is being spotted near you.
5,300+species
63national parks
50states